Arsenoriboside degradation in marine systems: The use of bacteria culture incubation experiments as model systems

作者：Duncan Elliott G^*; Maher William A; Foster Simon D; Mikac Katarina M; Krikowa Frank; Florance Anthea

来源：Chemosphere, 2014, 95: 635-638.

DOI：10.1016/j.chemosphere.2013.08.029

• Arsenoribosides
• Marine bacteria
• Culture media
• Arsenic degradation
• Arsenic cycling

Arsenoribosides (as glycerol; phosphate; sulfate and sulfonate) persisted in all bacteria-inoculated cultures irrespective of the source of bacteria (seawater, macro-algae surface) or the culture media used (DIFCO Marine Broth 2216 or novel blended Hormosira banksii tissue-based). This is unlike observations from traditional macro-algae tissue decomposition studies or in nature. In addition known arsenoriboside degradation products such as dimethylarsenoethanol (DMAE), dimethylarsenate (DMA), methylarsenate (MA) and arsenate - As(V) were not detected in any cultures. Consequently, the use of bacterial culture incubation experiments to explain the fate of arsenoribosides in marine systems appears limited as the processes governing arsenoriboside degradation in these experiments appear to be different to those in macro-algae tissue decomposition studies or in nature.

• 出版日期2014-1
• 单位CSIRO